I have a small case P120 with a 1.2 GB HD, 3.5" footprint. When I went to install a second HD, low and behold there is no room.

My choices are to replace the HD (reinstalling Win '95 and all software) or to get a larger case and add the second HD in.

Question 1: how difficult is this to do? I'm comfortable popping cards and memory in and out, but have never done anything this extreme.

Question 2: any websites or books recommended for pointers? I'd like to actually learn more about this.

Question 3: an additional problem in the machine is the S3 Trio Video Card, which doesn't work on some games. It's integrated into the motherboard. Can I install another card and bypass this one?